Main changes over the 3.6 series are as follows: * added the rhythmtapping and rhythmtapping2 modules. * menu reorganisation * export training set feature * better error messages if you try to write lesson files. In addition, it would probably be good to bump the 3.6.0 version currently in portage to the most recent version, 3.6.6, in the 3.6.x series.
3.8.0 bumped, thanks for the notice ;)